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R. Kuntz*, E. K. Paik**, M. Tsukada*, T. Ernst*, K. Mitsuya* *WIDE at Keio University

R. Kuntz*, E. K. Paik**, M. Tsukada*, T. Ernst*, K. Mitsuya* *WIDE at Keio University **Seoul National University Aug. 2, 2004, San Diego, 60 th IETF NEMO WG http://www.nautilus6.org.

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R. Kuntz*, E. K. Paik**, M. Tsukada*, T. Ernst*, K. Mitsuya* *WIDE at Keio University

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  1. R. Kuntz*, E. K. Paik**, M. Tsukada*, T. Ernst*, K. Mitsuya* *WIDE at Keio University **Seoul National University Aug. 2, 2004, San Diego, 60th IETF NEMO WG http://www.nautilus6.org Evaluating Multiple Mobile Routers and Multiple Prefixes in NEMO Basic Supportdraft-kuntz-nemo-multihoming-test-00.txt

  2. Overview Motivations Investigate issues with Multiple Mobile Routers and Multiple NEMO-Prefixes Based on draft-ietf-nemo-multihoming-issues-00.txt Environment Operating System: NetBSD 1.6.1 Nautilus6 NEMO Basic Support implementation based on KAME stack

  3. Implementation Status • Need multiple CoA registrations to test (1,*,*) • NEMO Basic Support issue • Need multiple prefix registrations in a single BU message to test (1,*,n) • implementation issue.

  4. CN CN AR AR p1 Internet p1 Internet AR CoA1 AR MR1 CoA1 MR1 HA HA LFN LFN AR CoA2 CoA2 MR2 MR2 Home Network Home Network P1/2 P1/2 Topology: Case (2MRs,1HA,1prefix) and (2MRs,1HA,2prefixes) Both MR in foreign network One MR at home

  5. Issues • Unreachability • Binding de-registration delay • Switching delay from an MR to another MR • Routing Loop • When failed MR’s binding lifetime expires • No BU entry in HA • No routing information for NEMO-prefix in HA routing table • Asymmetric Communication • Incoming traffic by MR1 and outgoing by MR2

  6. Requirements MNN’s quick switching of Default MR When default MR’s egress interface fails When incoming and outgoing traffic is asymmetric Quick de-registration of MR When it fails When there is another MR at home HA’s ability of choosing an MR at Home Prefix BU for any failed MR Cooperation between MRs Dynamically activating/deactivating RA on MR

  7. Conclusion • Mobile network reachability depends on • MR’s operation • MRs’ cooperation • HA’s routing table and binding cache • MNN’s default router http://www.nautilus6.org

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